Nut-lock



(fr0 ModeL-y S. P. KIMBALL.

NUT LOOK.

Patented Jan. 15, 1884.

WITNBSSES `line g/ y; Fig. 1.

SAMUEL I. KIMBALL, OF VOODCTOOK, OHIO.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 291,913, dated January 15, 1884.

Application filed December 1', 1883. (No model.)

To all whom t may concern:

Be it known that I, SAMUEL I. KIMBALL, a citizen of the United States, residing at 'VVoodstock, in the county of Champaign and State of Ohio, have invented certain new and useful Improvementsin Nut-Locks, and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to nut-locks in which the washer is provided with locking points or flanges, and its object is to provide a device of this class possessing superior advantages in point of simplicity, inexpensiveness, durability, and general efficiency.

In the drawings, Figure 1 is a front elevation, showing my improved nut-lock in position. Fig. 2 is a transverse sectional view of the same on the line x x, Fig. 1. Fig. 3 is a longitudinal sectional view of the same en the Fig. Ll is a plan view of the washer-blank, showing the points or flanges eut therein. Fig. 5 is a corresponding view ofthe blank, showing the p oints turned therefrom, as when the washer is in locking position. Fig. 6 is a face view of the washerplate, illustrating a modified form adapted to lock a pair `of nuts.

Referring to the drawings, A designates the bolt, which receives thevnut B in the usual manner.

C designates my improved washer-plate, which is preferably of rectangular form, and is provided with theusual perforation, c, to receive the bolt. At the sides of an imaginary square (illustrated by dotted lines, Fig. 4) points c are cut through the washer-plate, these points being preferably of shape, and formed at two or more sides of the square. As herein shown, the points are formed at the top and end sides of the square, which is the arrangement I prefer when the washer is designed for locking nuts at railroad-joints and like places. This imaginary square is formed around the eye c ofthe washer-plate, and corresponds to the shape of the nut, so that should the nut be of hexagonal or other angular form this space will have a corresponding shape, and the point will be formed at the sides formed by the different angles. Vithin this square or angular space, (which is designated by the letter D,) inclosed by the points c, are cut (preferably shaped) points c2 ci on diametrically-opposite sides of the eye c, the purpose of which will be presently described. These points c and ci, being all out within the surface of the washer-plate, do not tend to materially weaken said plate, as is the case when locking-points have been cut from the edge of the plate, and this arrangement also secures an especially simple, strong, and durable locking-washer. The washer-plate blank is rst cut, as above described, to form the arrangement of points when the middle points, c2 c2, are bent from the plate rearwardly, and the plate is adjusted in position on the bolt, so that these said -shaped points c2 will be driven home into the contact-surface E by action of the nut as it is screwed on the bolt. The outer series of points, c, which inclose the points, 0, are now turned up against the sides of the nut in the usual manner. When it is desired to lock a pair (or more) of nuts, the middle points, c2, can be dispensed with, as shown in Fig. 6, and the washer-plate be simply extended, as shown, so as to receive all the bolts of the series.

I am aware that washer-plates have been heretofore provided with various arrangements of locking points and flanges, and I claim only my own invention, consisting of the herein-described washer-plate, having the main points cut within the surface of the plate and around the sides of the middle square or angular space, and the auxiliary points formed within this middle space, whereby superior advantages are secured in point of simplicity, durability, strength, and general efficiency.

' I claim as my invention- 1. As an improved article of manufacture, theherein-describedwasher-plate, formedwith an eye to receive the bolt, and having locking-points cut within the plate and at the sides of a square or angular space thus formed around said eye, substantially as set forth.

2. As an improved article of manufacture, the hereindescribed washer-plate, having locking-points cut at the sides of a square or angular space, and having auxiliary lockingpoints cut within this angular space, substantially as set forth.

3. As an improved article of manufacture, the hereindescribed washer-plate, formed TOO with an eye to receive the bolt, having locking-points cut within the plate and at the sides of a square or angular space thus formed around said eye, and having auxiliary locking-points cut within this angular space, substantially as set forth.

4. As an improved article of manufacture, the herein described washer plate, having locking-points cut at the sides of a square or angular space and bent up forwardly and from the face of the plate, and having auxiliary locking-points cut within this angular space and bent up rearwardly and from the face of the plate, substantially as set forth.

5. As an improved article of manufacture, the herein-described washer-plate, having an eye for the bolt, points cut within the plate and at the sides of a square or angular space thus formed around the eye and bent forwardly from the face of the plate, and auxiliary shaped points cut through the plate within this angular space and on dianietrically-opposite sides of the eye, and bent rearwardly from the face of the plate, substantially as set forth.

6. The combination of the bolt, the contactsurface E, the washer-plate arranged on the bolt and having points c cut at the sides of a square or angular portion extending around the bolt, said points being bent forwardly fromv the plate, and also having auxiliary shaped points c cut within the angular space and entering the surface E, and the nut inclosed by points c', and covering the angular space and auxiliary points, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL l?. KIMBALL. Vitn esses:

LnoNrnAs Pirnie,

,. M. INGMAN. 

